A Health Psychologist Conducts a Study on Whether the Percentage

question 33

Essay

A health psychologist conducts a study on whether the percentage of fat in a person's diet (X)predicts the percentage of time the person uses a seat belt (Y),with the idea that those who practice one kind of health-related behavior may be more likely to practice another.The results were: a.Figure the linear prediction rule.
b.Make a graph with the regression line.
c.Figure the standardized regression coefficient.
d.Explain the logic of what you did to someone who is familiar with correlation,but who knows nothing about prediction.Be sure your answer explains the ideas of prediction,linear prediction rule,best linear prediction rule,the regression line,and the standardized regression coefficient.
e.Advanced topic: Figure the proportionate reduction in error using sums of squared errors.
f.Advanced topic: Explain the logic behind how you figured the proportionate reduction in error.